Clarify liboqs_DIR naming convention

[ajbozarth]

As per discussion in #277 we want to clarify why the env var liboqs_DIR does not follow standard naming convention by using lowercase.

Fixes #277

[ajbozarth]

@baentsch @thb-sb does this small addition to the docs look good to you two to clarify our decisions from #273 #277 #275 ?

[ghost]

I'm wondering if mentioning the fact that we're using find_package could be helpful to users. Since the CMake target is named liboqs, they would know that they have to define liboqs_DIR (see the documentation of find_package).

[ajbozarth]

That's a good idea, what if I used this sentence instead:

This uses the find_package command in cmake which checks for local builds of a package at <PackageName>_DIR

[ghost]

Sounds good to me!

[baentsch]

Thanks! LGTM. In future PRs, please tag documentation-only changes with "[skip ci]" to avoid running pointless testing. The environment says Thanks.

[ajbozarth]

please tag documentation-only changes

good to know, many projects don't have that feature

[baentsch]

please tag documentation-only changes

good to know, many projects don't have that feature

Yup, many IT projects don't care about their environmental impact. There's a reason data centers need about 200 TWh per year, i.e., as much as Israel, Switzerland and Finland together generate... OK, badly programmed AI probably is the biggest culprit, but just pointing to others is a cop out.